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About the Fund

The AlleyCorp Healthcare Fund is one of the most active early-stage venture funds and incubators in New York dedicated to healthcare.

We are a physician-led fund within the broader AlleyCorp umbrella. We invest our own internal capital so our values and success are fully aligned with our companies, not outside LPs. We build companies that share our mission to dramatically improve healthcare across cost, quality, and access.

We are investing $100M into healthcare innovation over the next few years.
Our strategy is focused, yet unconstrained. While most of our work is in digital health and New York City, we opportunistically span geographies and healthcare subsectors.


AlleyCorp Healthcare Team

Our team brings together physicians, entrepreneurs, and seasoned operators for a uniquely cross-disciplinary approach to healthcare innovation. We tie everything we do back to the patient and practitioner experience.

  • Kevin Ryan


    Kevin Ryan

    Chairman About

    Kevin Ryan is one of the leading internet entrepreneurs and investors in New York. He is co-founder of MongoDB, Business Insider, GILT, Zola, and Nomad Health, and founds new companies with AlleyCorp every year.

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  • Brenton Fargnoli,

    Managing Partner

    Brenton Fargnoli,

    Managing Partner About

    Brenton leads AlleyCorp’s healthcare investments and incubations. Prior to AlleyCorp, Brenton was an executive at Flatiron Health. He worked previously at J.P. Morgan and Blue Cross & Blue Shield. He is a practicing physician, board certified in Internal Medicine.

    Brenton completed his residency at Harvard’s Brigham and Women’s Hospital. He graduated summa cum laude from the University of Pennsylvania, earning his MD from the University of Pennsylvania School of Medicine and an MBA in Healthcare Management from the Wharton School.

    Brenton supports the growth of AlleyCorp’s healthcare network and is currently on the board for Diana Health, Fund for Public Health NYC, OMNY Health, Orange Grove Bio, Pearl Health, Positive Development, Reside Health and Transcend Therapeutics,Thyme Care and Vori Health.

  • Jeff De Flavio,

    Partner & EIR

    Jeff De Flavio,

    Partner & EIR About

    Jeff supports the growth of AlleyCorp’s healthcare practice as a co-founder and mentor for AlleyCorp’s founding CEOs and broader network, focusing on a range of projects across maternity care, digital therapeutics, and behavioral change – with an emphasis on pushing current thinking on the relationship between social forces and healthcare. 

    Jeff has dedicated his career to broadening access to healthcare, particularly for the most vulnerable patients. His first company, Groups, has become the leading provider of value-based opiate addiction treatment. Launched while he was still a medical student, Groups was conceived as a space for patients to heal and discover common solutions to their shared problems. Having completed a 2019 growth round led by Kaiser Permanente, Optum Ventures and Leerink/SVB, Groups has become an important forcing mechanism for our collective acknowledgement and action towards one of the most troubling systemic healthcare issues facing our country.

    Jeff is also a co-founder of Tempest, a holistic alcohol recovery program founded by Holly Whitaker that brings feminine-centric care to people poorly served by traditional addiction treatment.

  • Bridget Martell,

    Venture Partner

    Bridget Martell,

    Venture Partner About

    Dr. Martell is a high impact, results-oriented scientific biotech executive with breadth and depth in clinical development, medical affairs, and business development across a range of therapeutic areas from first in human to approval and commercialization. Dr. Martell brings extensive scientific acumen to her leadership roles and has been a pivotal leader or major contributor in the success of six marketed products: Kadcyla®, Elelyso®, Intermezzo®, the trastuzumab biosimilars Ogiviri®, as well as secondary indications for Pradaxa® and Sutent®. Dr. Martell has held leadership and C-suite executive roles at companies including Kura Oncology where she led the Menin Inhibitor Program and at Juniper Pharmaceuticals where she led the development program for a Bob Langer combined drug device technology that was out licensed for $131M. She started her pharma career at Pfizer where she had roles of increasing responsibility that included Clinical Team Leader for Sutent® GU solid tumors in the Oncology Business Unit and ultimately Biosimilars Medical Head. She began her clinical investigation career at Yale with a Career Development Award where she led a therapeutic cocaine vaccine trial and as Robert Wood Johnson Clinical Scholar. She was a practicing physician at Yale for 20 years and remains active as an Entrepreneur in Residence at the Office of Cooperative Research. Dr. Martell holds a B.Sc. in Microbiology from Cornell University, an M.A. in Molecular Immunology from Boston University, and an M.D. from The Chicago Medical School. She is board certified in both Internal and Addiction Medicine.

  • Sven Karlsson

    Venture Partner

    Sven Karlsson

    Venture Partner

    Sven is a Venture Partner at AlleyCorp, where he identifies new investment opportunities and supports portfolio companies. He is a biotech entrepreneur and a co-founder of PlateletBio, an allogeneic cell therapy platform company leveraging platelet biology to treat autoimmune diseases. He’s passionate about entrepreneurship and supporting founders as they navigate the rollercoaster from idea to product. In addition to his work with AlleyCorp, Sven currently serves as an advisor to 64x Bio, Luna Genetics, Gate Science, Mulberry Biotherapeutics, and other companies currently in stealth mode.

    Sven is a CFA Charterholder and graduated with an MBA from The Stern School of Business at NYU, where he was the recipient of the Dean’s Award for Outstanding Scholarship. He completed his undergraduate studies at the Cornell University College of Engineering.

  • Jane Suh


    Jane Suh


    Jane Suh is an Investor on the AlleyCorp Healthcare team and spends her time on incubation, identifying new investment opportunities, and supporting portfolio companies. She was previously a Partner at Andreessen Horowitz on the a16z Bio Fund, backing entrepreneurs at the intersection of healthcare, bio and tech. She was on the founding team of a16z’s Bio/Healthcare GTM Network group, where she worked with portfolio CEOs on their go-to-market strategy and managed strategic partnerships with F500 and G2000 executives to scale commercialization across key healthcare stakeholders. She was trained as a stem cell biologist, and combines her scientific expertise with her experiences in startups, finance and strategic partnerships to transform healthcare technology.

    Prior to joining a16z, she led partnerships and marketing initiatives at an early stage healthcare startup, connecting cancer patients to clinical trials using AI technology. She operationalized and managed partnerships with key hospital stakeholders, oncologists, and nurses at the highest ranked cancer hospitals. Before that, she was an investment banker at Broadhaven Capital Partners and executed capital raises and M&A transactions, most notably was the $5.2bn acquisition of Interactive Data Corporation by Intercontinental Exchange.

    Jane holds an A.B. in Human Developmental and Regenerative Biology from Harvard University. During her time at Harvard, she worked directly with the VP of GSK’s Regenerative Medicine group on its strategic partnership with the Harvard Stem Cell Institute, interviewing senior executives and key opinion leaders. She has published her research on global strategic partnerships in regenerative medicine in Cell Press: Trends in Biotechnology.

  • Omar Njie,
    M.D. Candidate


    Omar Njie,
    M.D. Candidate

    Associate About

    A third-year medical student at the Icahn School of Medicine at Mount Sinai, Omar Njie has demonstrated commitment to healthcare innovation and addressing health inequities.

    Prior to matriculating to Mount Sinai he worked as a healthcare consultant for Deloitte where he served clients in the provider, payer, and pharmaceutical sectors. He was also an early employee at Clover Health, a San Francisco-based health insurance company that leverages data and analytics to improve the health of Medicare beneficiaries. As a medical student, he co-founded the Diversity Innovation Hub, a nationally recognized venture working to address social determinants of health and improve minority representation in healthcare innovation. He has consulted for various healthcare startups and most recently worked as a Venture Fellow for Rock Health.

    Omar is a recipient of the 2020 Genentech Diversity Innovation Fellowship, the 2020 National Medical Fellowships/Wayne Anthony Butts Scholarship, and 2018 Mount Sinai Leaders as Scholars Merit Scholarship. In 2013 he received his B.A. in Global Affairs from Yale College, and, in 2014, he received his M.P.H. in Health Policy & Management from the Yale School of Public Health.

  • Sherman Leung,
    M.D. Candidate


    Sherman Leung,
    M.D. Candidate

    Investor About

    Sherman supports AlleyCorp’s incubation and investment opportunities in healthcare and enterprise software. Before AlleyCorp, Sherman was an enterprise technology investor at Underscore VC and an early product manager at PatientPing where he was named to MedTech Boston’s 40 under 40 Healthcare Innovators in 2018.

    Sherman was previously a Kleiner Perkins Fellow + product manager at Mango Health and a Greylock X Fellow + early mobile engineer at Khan Academy. He holds degrees in Computer Science and Management Science & Engineering from Stanford University, where he conducted machine learning and social gamification research under Dr. Fei-Fei Li and Michael Bernstein.

  • Anil Rustgi,

    Senior Advisor

    Anil Rustgi,

    Senior Advisor About

    Anil K. Rustgi is the Director of the Herbert Irving Comprehensive Cancer Center at NewYork-Presbyterian/Columbia University Irving Medical Center. Dr. Rustgi is a world-renowned physician-scientist and leader in the field of gastrointestinal cancers, spanning molecular pathogenesis to preclinical models to clinical studies. He is funded extensively through the NIH and maintains a clinical practice as well. He has been elected to the National Academy of Medicine, is a Fellow of the American Association for the Advancement of Science, and has been designated as American Cancer Society Professor. Dr. Rustgi is former President of the American Gastroenterology Association (AGA), Editor-in-Chief of Gastroenterology and recipient of the AGA Friedenwald Medal for lifetime achievement.


We've co-founded or been the first investor in healthcare companies that have already gone on to raise ~$500M in venture funding.

We are proud to have co-founded or funded companies leveraging data, software, or new care models to dramatically improve the quality, cost, and access of healthcare in the U.S.


A key component of our work is in actively supporting physicians who have unique potential or insights to lead their field forward as founders. Here are some of the physicians-turned-founders in our portfolio who we have supported from day one of their founder journey.

  • Alexi Nazem,

    Nomad Health
  • Ben Kelmendi,

    Transcend Therapeutics
  • Bobby Green,

    Thyme Care
  • Komal Kothari,

    Reside Health
  • Mary O'Connor,

    Vori Health
  • Max Laurans,

    Nomad Health
  • Ming Jack Po,
    M.D., Ph.D.

    Ansible Health
  • Mitesh Rao,

    OMNY Health
  • Ryan Grant,

    Vori Health & Nomad Health


These NYC-based operators with specialized healthcare expertise work with us across the full spectrum of founding, funding, and building companies.

  • Ross Feinstein
    Business Development

    Sunlight First
  • Alphan Kirayoglu
    Data & Engineering

    Thyme Care
  • Cooper Zelnick

    Groups Recover Together
  • Puneet Singh

    Quartet Health
  • Manya Ellenberg
    HR & People Ops

    Thyme Care
  • Allison Canton,
    Legal & Regulatory

    Flatiron Health
  • Mike Chi
    Marketing & Growth

    Hims & Hers
  • David Fajgenbaum,

    University of Pennsylvania School of Medicine
  • David Rosenthal,

  • Ravi Shah,

    Columbia University Medical
  • Julia Bernstein

    Thirty Madison
  • Justin Lambert

    Nomad Health
  • Lily Alexander
    Payer Strategy

  • Ankit Patel,
    Payer Strategy

    Pearl Health
  • David Cirilli
    PR & Communications

    Untitled Partners
  • Alex Zhang

  • Rachel Lin

    Affect Health
  • Amber Hampton Green
    Product & Design

Social Impact

Nonprofits We Support

We act upon important ideas to improve healthcare regardless of their ability to draw a profit.

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